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Hydraulic pumps are crucial components in various industrial applications, and Sauer Danfoss hydraulic pumps are known for their reliability and performance. To ensure these pumps operate efficiently and have a long lifespan, proper maintenance is essential. This guide provides comprehensive tips and practices for maintaining Sauer Danfoss hydraulic pumps.
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Understand the Pump Design

7004093S
Before diving into maintenance, it’s important to familiarize yourself with the specific model of your Sauer Danfoss hydraulic pump. Different models may have unique components and maintenance requirements. Refer to the manufacturer’s manual for information specific to your pump.
Regular Inspection
Conduct routine inspections of your hydraulic pump to identify wear and tear. Check for leaks, unusual noises, vibrations, or overheating. Regularly inspect seals, fittings, and hoses for damage. Early detection of potential issues can prevent costly repairs and downtime.
Fluid Maintenance
Hydraulic fluid is the lifeblood of your pump. Ensure that the fluid level remains within the recommended range and that it is free from contaminants. Use a fluid that is compatible with the pump specifications outlined in the manufacturer’s manual. Regularly test and change the hydraulic oil according to the recommended schedule, or more frequently in contaminated environments.
Filtration System
A quality filtration system is crucial for maintaining hydraulic fluid purity. Ensure that filters are regularly checked and replaced as needed to prevent contaminants from entering the hydraulic system. Implement a routine schedule for filter changes based on operating hours or fluid condition.
Temperature Control
Operating temperature can significantly affect the performance and longevity of hydraulic pumps. Ensure that your pump is not operating outside its recommended temperature range. Install heat exchangers or cooling systems if necessary to maintain optimal operating temperatures.
Lubrication
Regular lubrication of moving components is essential to minimize friction and wear. Refer to the maintenance manual for specific lubrication points and intervals. Use only the recommended lubricants to ensure compatibility and performance.
Seal Replacement